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This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
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A complete manual with all the needed details of calibrations and service instructions about the radio receiver.
A big deal.
Many thanks !
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Fast delivery and good quality copy. To be recommended
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Excellent product, very clear print. Detailed circuit and assembly diagrams - this enabled me to repair my CD player with confidence. I highly recommend this site.
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Fast access, 100% correct and complete service manual
AV-16N7
SELF-CHECK FUNCTIONS
1. Outline This model has self-check functions given below. When an abnormality has been detected, the SUB POWER is turned off and the ON TIMER LED flashes to inform of the failure. An abnormality is detected by the signal input state of the control line connected to the microcomputer.
2. Self-check items Check item Over-current protection Details of detection An over-current on the low B line is detected. Method of detection The main microcomputer detects the possible abnormality at 20msec. intervals and judges the results in every 24 time. Of the 24 times, if NG is detected more than 13 times, it is judged that there is an abnormality. State of abnormality When an abnormality has been detected, the SUB-POWER is turned off. While the SUBPOWER is being turned off, the POWER key on the remote control unit is not operational until the power cord is taken out and put in again. DITTO
CRT NECK protection
Operation of CRT NECK protection circuit
DITTO
3. Self-check indicating function When an abnormality has been detected at about 3 seconds after the power is turned on, the SUB POWER is turned off immediately and the ON TIMER LED flashes.
Power on
After about 3 seconds
Detection of an abnormality
Start of detection
Flashing ON TIMER LED
SUB-POWER OFF
[ Indication by the LED ] Item Over-current and CRT NECK protection LED flashing intervals At 0.24-second intervals
26
No. 56093
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